JOHNSTON INTERNAL MEDICINE
NPI 1386992592
Internal Medicine in Bethel Park, PA

Q: What is St. Clair Medical Services, Inc.'s NPI number?

The NPI number for St. Clair Medical Services, Inc. is 1386992592. It was assigned to this organization in the NPPES registry on August 17, 2012. The provider is doing business as Johnston Internal Medicine.

Q: What is St. Clair Medical Services, Inc.'s specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Active since August 17, 2012

2000 OXFORD DR, SUITE 115, BETHEL PARK, PA 15102(412) 471-3061(412) 471-6621 Get Directions Write a Review

NPPES record last updated: August 17, 2012. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About Johnston Internal Medicine NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JOHNSTON INTERNAL MEDICINE (NPI 1386992592) is a healthcare organization registered as an internal medicine in Bethel Park, Pennsylvania and active in the NPI registry since August 2012. The organization lists Richard C. Chesnos, Sr Vp & Cfo, as its authorized official.

NPPES Registry Identity

NPI1386992592

Entity TypeOrganization

Primary Taxonomy207R00000X

Legal Business NameST. CLAIR MEDICAL SERVICES, INC.

Location Address2000 OXFORD DR, SUITE 115Bethel Park, PA 15102-1827

Mailing Address1000 Bower Hill RdPittsburgh, PA 15243-1873 · (412) 942-2672 · Fax (412) 942-2689

Phone(412) 471-3061

Fax(412) 471-6621

Organization SubpartYesParent: St. Clair Hospital

Authorized OfficialRichard C. ChesnosSr Vp & Cfo · (412) 942-1250

Enumeration DateAugust 17, 2012

✔ NPI 1386992592 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

2000 OXFORD DR, Bethel Park, PA 15102

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Other Names 1

Doing Business AsJohnston Internal Medicine

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Johnston Internal Medicine is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

306

Medicare enrollment records show 306 clinicians reassign Medicare billing to Johnston Internal Medicine, which bills Medicare for the services they deliver. Of these, 41 practice at this address and 193 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 30

Emergency Medicine59

Nurse Practitioner55

Internal Medicine40

Neurology20

Cardiovascular Disease (Cardiology)16

Family Practice16

Psychiatry12

Diagnostic Radiology11

22 other specialties77

Nearest to this location (20)

See all 306

Bridget Beier, DO

Endocrinology

NPI 1538376736

2000 OXFORD DR SUITE 200
Bethel Park, PA 15102

(412) 942-2140

✔ PECOS✔ Accepts MedicareSame address

David Demarino, MD

Otolaryngology

NPI 1679508030

2000 OXFORD DR SUITE 201
Bethel Park, PA 15102

(412) 831-7570

✔ PECOS✔ Accepts MedicareSame address

Brian Elford, D.O.

Otolaryngology

NPI 1558470492

2000 OXFORD DR SUITE 201
Bethel Park, PA 15102

(412) 831-7570

✔ PECOS✔ Accepts MedicareSame address

Wayne Evron, M.D.

Endocrinology

NPI 1346268299

2000 OXFORD DR
Bethel Park, PA 15102

(412) 942-7295

✔ PECOS✔ Accepts MedicareSame address

Aimee Marmol, M.D.

Internal Medicine

NPI 1760474183

2000 OXFORD DR 420
Bethel Park, PA 15102

(412) 942-8500

✔ PECOSSame address

Ashley Baker, AUD

Qualified Audiologist

NPI 1225924079

2000 OXFORD DR STE 201
Bethel Park, PA 15102

(412) 831-7570

✔ Accepts MedicareSame address

Tatyana Barsouk, MD

Neurology

NPI 1679535082

2000 OXFORD DR STE 405
Bethel Park, PA 15102

(412) 942-6300

✔ PECOS✔ Accepts MedicareSame address

Kyle Buchanan, MD

Interventional Cardiology

NPI 1447577655

2000 OXFORD DR STE 305
Bethel Park, PA 15102

(412) 942-7900

✔ PECOS✔ Accepts MedicareSame address

Raye Budway, M.D.

General Surgery

NPI 1871500462

2000 OXFORD DR STE 301
Bethel Park, PA 15102

(412) 942-7850

✔ PECOS✔ Accepts MedicareSame address

Karl Bushman, M.D.

Internal Medicine

NPI 1982696308

2000 OXFORD DR 420
Bethel Park, PA 15102

(412) 942-8500

✔ PECOSSame address

Ruth Christoforetti, M.D.

Family Practice

NPI 1215294640

2000 OXFORD DR STE 302
Bethel Park, PA 15102

(412) 942-8570

✔ PECOSSame address

Sebastian Estrada, MD

Cardiovascular Disease (Cardiology)

NPI 1477015410

2000 OXFORD DR STE 305
Bethel Park, PA 15102

(412) 942-7900

✔ PECOS✔ Accepts MedicareSame address

Autumn Gianfrancesco, CRNP

Nurse Practitioner

NPI 1336919885

2000 OXFORD DR STE 301
Bethel Park, PA 15102

(412) 942-7850

✔ PECOS✔ Accepts MedicareSame address

John Girod, DO

Cardiovascular Disease (Cardiology)

NPI 1902016405

2000 OXFORD DR STE 305
Bethel Park, PA 15102

(412) 942-7900

✔ PECOS✔ Accepts MedicareSame address

Emily Gleason, M.D.

Family Practice

NPI 1356799795

2000 OXFORD DR STE 302
Bethel Park, PA 15102

(412) 942-8570

✔ PECOS✔ Accepts MedicareSame address

Scott Harrington, MD

Emergency Medicine

NPI 1780657577

2000 OXFORD DR
Bethel Park, PA 15102

(412) 942-8800

✔ PECOSSame address

David Helfrich

Rheumatology

NPI 1770565095

2000 OXFORD DR SUITE 113
Bethel Park, PA 15102

(412) 831-1929

✔ PECOS✔ Accepts MedicareSame address

Jeffrey Liu, MD

Cardiac Electrophysiology

NPI 1649314089

2000 OXFORD DR STE 305
Bethel Park, PA 15102

(412) 942-7900

✔ PECOS✔ Accepts MedicareSame address

Carmen Petraglia, MD

Orthopedic Surgery

NPI 1194906065

2000 OXFORD DR SUITE 211
Bethel Park, PA 15102

(412) 283-0260

✔ PECOS✔ Accepts MedicareSame address

Edward Ruane, M.D.

Plastic and Reconstructive Surgery

NPI 1790037059

2000 OXFORD DR STE 410
Bethel Park, PA 15102

(412) 572-6164

✔ PECOS✔ Accepts MedicareSame address

See all 306 clinicians

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is St. Clair Medical Services, Inc.'s NPI number?

The NPI number for St. Clair Medical Services, Inc. is 1386992592. It was assigned to this organization in the NPPES registry on August 17, 2012. The provider is doing business as Johnston Internal Medicine.

Where is St. Clair Medical Services, Inc. located?

St. Clair Medical Services, Inc. is located at 2000 Oxford Dr Suite 115, Bethel Park, PA 15102. The listed phone number is (412) 471-3061.

What is St. Clair Medical Services, Inc.'s specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is St. Clair Medical Services, Inc. enrolled in Medicare?

Yes. St. Clair Medical Services, Inc. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through St. Clair Medical Services, Inc.?

According to the CMS Revalidation Reassignment List (October 2026 release), 306 clinicians in 30 Medicare specialties reassign their Medicare billing to St. Clair Medical Services, Inc.. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Emergency Medicine (59), Nurse Practitioner (55) and Internal Medicine (40). Of these, 41 practice at this address and 193 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for St. Clair Medical Services, Inc. was last updated on August 17, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.